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<FONT color="green">001</FONT>    package metaface.server;<a name="line.1"></a>
<FONT color="green">002</FONT>    import javax.xml.parsers.*;<a name="line.2"></a>
<FONT color="green">003</FONT>    import org.xml.sax.*;<a name="line.3"></a>
<FONT color="green">004</FONT>    import org.xml.sax.helpers.*;<a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    import java.util.*;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.io.*;<a name="line.7"></a>
<FONT color="green">008</FONT>    import metaface.dsp.*;<a name="line.8"></a>
<FONT color="green">009</FONT>    import metaface.nlp.*;<a name="line.9"></a>
<FONT color="green">010</FONT>    /**<a name="line.10"></a>
<FONT color="green">011</FONT>     *  This class is used to construct an eXtensible Markup Language (XML) parser<a name="line.11"></a>
<FONT color="green">012</FONT>     *  for a Virtual Human Markup Language (VHML)document.&lt;p><a name="line.12"></a>
<FONT color="green">013</FONT>     *<a name="line.13"></a>
<FONT color="green">014</FONT>     *  Follow this link to retrieve the Document Type Definition <a name="line.14"></a>
<FONT color="green">015</FONT>     *  &lt;A HREF="../../resources/vhml.dtd">vhml.dtd&lt;/A> Follow this link to retrieve an<a name="line.15"></a>
<FONT color="green">016</FONT>     *  example XML file &lt;A HREF="../../resources/vhml_example.xml"><a name="line.16"></a>
<FONT color="green">017</FONT>     *  vhml_example.xml&lt;/A><a name="line.17"></a>
<FONT color="green">018</FONT>     *<a name="line.18"></a>
<FONT color="green">019</FONT>     *@author     Simon Beard <a name="line.19"></a>
<FONT color="green">020</FONT>     *@version    1.0 <a name="line.20"></a>
<FONT color="green">021</FONT>     */<a name="line.21"></a>
<FONT color="green">022</FONT>    public class VHMLParser {<a name="line.22"></a>
<FONT color="green">023</FONT>            private VHMLReader vhmlparser;<a name="line.23"></a>
<FONT color="green">024</FONT>            private SAXParserFactory spf;<a name="line.24"></a>
<FONT color="green">025</FONT>            private XMLReader xmlReader;<a name="line.25"></a>
<FONT color="green">026</FONT>            private SAXParser saxParser;<a name="line.26"></a>
<FONT color="green">027</FONT>            private boolean validation = true;<a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>    <a name="line.29"></a>
<FONT color="green">030</FONT>            /**<a name="line.30"></a>
<FONT color="green">031</FONT>             *  Constructor for the VHMLParser object<a name="line.31"></a>
<FONT color="green">032</FONT>             *<a name="line.32"></a>
<FONT color="green">033</FONT>             *@param  response_file             The VHML file to parse<a name="line.33"></a>
<FONT color="green">034</FONT>             *@param  framespersec              The frame rate for animation<a name="line.34"></a>
<FONT color="green">035</FONT>             *@param  digitalsignalprocessor    The DSP<a name="line.35"></a>
<FONT color="green">036</FONT>             *@param  naturallanguageprocessor  The NLP<a name="line.36"></a>
<FONT color="green">037</FONT>             *@param  smldtdpath                The path to the SML DTD (for SPEMO parsing)<a name="line.37"></a>
<FONT color="green">038</FONT>             */<a name="line.38"></a>
<FONT color="green">039</FONT>            public VHMLParser(String response_file, int framespersec, DigitalSignalProcessor digitalsignalprocessor, NaturalLanguageProcessor naturallanguageprocessor, String smldtdpath) {<a name="line.39"></a>
<FONT color="green">040</FONT>    <a name="line.40"></a>
<FONT color="green">041</FONT>                    spf = SAXParserFactory.newInstance();<a name="line.41"></a>
<FONT color="green">042</FONT>                    spf.setValidating(validation);<a name="line.42"></a>
<FONT color="green">043</FONT>                    xmlReader = null;<a name="line.43"></a>
<FONT color="green">044</FONT>                    try {<a name="line.44"></a>
<FONT color="green">045</FONT>    <a name="line.45"></a>
<FONT color="green">046</FONT>                            // Create a JAXP SAXParser<a name="line.46"></a>
<FONT color="green">047</FONT>                            saxParser = spf.newSAXParser();<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>                            // Get the encapsulated SAX XMLReader<a name="line.49"></a>
<FONT color="green">050</FONT>                            xmlReader = saxParser.getXMLReader();<a name="line.50"></a>
<FONT color="green">051</FONT>                            xmlReader.setErrorHandler(new VHMLErrorHandler(System.err));<a name="line.51"></a>
<FONT color="green">052</FONT>    <a name="line.52"></a>
<FONT color="green">053</FONT>                    } catch (Exception e) {<a name="line.53"></a>
<FONT color="green">054</FONT>                            System.err.println("Error creating SAX parser");<a name="line.54"></a>
<FONT color="green">055</FONT>                            e.printStackTrace();<a name="line.55"></a>
<FONT color="green">056</FONT>                    }<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>                    // Tell the XMLReader to parse the XML document<a name="line.58"></a>
<FONT color="green">059</FONT>                    try {<a name="line.59"></a>
<FONT color="green">060</FONT>                            vhmlparser = new VHMLReader(framespersec, digitalsignalprocessor, naturallanguageprocessor, smldtdpath);<a name="line.60"></a>
<FONT color="green">061</FONT>                            xmlReader.setContentHandler(vhmlparser);<a name="line.61"></a>
<FONT color="green">062</FONT>                            xmlReader.parse(convertToFileURL(response_file));<a name="line.62"></a>
<FONT color="green">063</FONT>                    } catch (IOException e) {<a name="line.63"></a>
<FONT color="green">064</FONT>                            System.err.println("IO Error whilst parsing VHML");<a name="line.64"></a>
<FONT color="green">065</FONT>                            e.printStackTrace();<a name="line.65"></a>
<FONT color="green">066</FONT>                    } catch (SAXException e) {<a name="line.66"></a>
<FONT color="green">067</FONT>                            System.err.println("SAX Error whilst parsing VHML");<a name="line.67"></a>
<FONT color="green">068</FONT>                            e.printStackTrace();<a name="line.68"></a>
<FONT color="green">069</FONT>                    }<a name="line.69"></a>
<FONT color="green">070</FONT>            }<a name="line.70"></a>
<FONT color="green">071</FONT>    <a name="line.71"></a>
<FONT color="green">072</FONT>    <a name="line.72"></a>
<FONT color="green">073</FONT>            /**<a name="line.73"></a>
<FONT color="green">074</FONT>             *  Convert from a filename to a file URL.<a name="line.74"></a>
<FONT color="green">075</FONT>             *<a name="line.75"></a>
<FONT color="green">076</FONT>             *@param  filename  The filename to turn to an URL<a name="line.76"></a>
<FONT color="green">077</FONT>             *@return           The URL<a name="line.77"></a>
<FONT color="green">078</FONT>             */<a name="line.78"></a>
<FONT color="green">079</FONT>            private static String convertToFileURL(String filename) {<a name="line.79"></a>
<FONT color="green">080</FONT>                    String path = new File(filename).getAbsolutePath();<a name="line.80"></a>
<FONT color="green">081</FONT>                    if (File.separatorChar != '/') {<a name="line.81"></a>
<FONT color="green">082</FONT>                            path = path.replace(File.separatorChar, '/');<a name="line.82"></a>
<FONT color="green">083</FONT>                    }<a name="line.83"></a>
<FONT color="green">084</FONT>                    if (!path.startsWith("/")) {<a name="line.84"></a>
<FONT color="green">085</FONT>                            path = "/" + path;<a name="line.85"></a>
<FONT color="green">086</FONT>                    }<a name="line.86"></a>
<FONT color="green">087</FONT>                    return "file:" + path;<a name="line.87"></a>
<FONT color="green">088</FONT>            }<a name="line.88"></a>
<FONT color="green">089</FONT>    <a name="line.89"></a>
<FONT color="green">090</FONT>    <a name="line.90"></a>
<FONT color="green">091</FONT>            /**<a name="line.91"></a>
<FONT color="green">092</FONT>             *  Allows access to the MPEG-4 FAPs retrieved<a name="line.92"></a>
<FONT color="green">093</FONT>             *<a name="line.93"></a>
<FONT color="green">094</FONT>             *@return    A list of FAPData MPEG-4 FAP frames<a name="line.94"></a>
<FONT color="green">095</FONT>             */<a name="line.95"></a>
<FONT color="green">096</FONT>            public Vector getFrames() {<a name="line.96"></a>
<FONT color="green">097</FONT>                    return (vhmlparser.getFrames());<a name="line.97"></a>
<FONT color="green">098</FONT>            }<a name="line.98"></a>
<FONT color="green">099</FONT>    <a name="line.99"></a>
<FONT color="green">100</FONT>    <a name="line.100"></a>
<FONT color="green">101</FONT>            /**<a name="line.101"></a>
<FONT color="green">102</FONT>             *  Allows access to the phonemes retrieved<a name="line.102"></a>
<FONT color="green">103</FONT>             *<a name="line.103"></a>
<FONT color="green">104</FONT>             *@return    A list of phonemes<a name="line.104"></a>
<FONT color="green">105</FONT>             */<a name="line.105"></a>
<FONT color="green">106</FONT>            public Vector getPhonemes() {<a name="line.106"></a>
<FONT color="green">107</FONT>                    return (vhmlparser.getPhonemes());<a name="line.107"></a>
<FONT color="green">108</FONT>            }<a name="line.108"></a>
<FONT color="green">109</FONT>    <a name="line.109"></a>
<FONT color="green">110</FONT>    <a name="line.110"></a>
<FONT color="green">111</FONT>            /**<a name="line.111"></a>
<FONT color="green">112</FONT>             *  Allows access to the plain text retrieved<a name="line.112"></a>
<FONT color="green">113</FONT>             *<a name="line.113"></a>
<FONT color="green">114</FONT>             *@return    A String of characters<a name="line.114"></a>
<FONT color="green">115</FONT>             */<a name="line.115"></a>
<FONT color="green">116</FONT>            public String getText() {<a name="line.116"></a>
<FONT color="green">117</FONT>                    return (vhmlparser.getText());<a name="line.117"></a>
<FONT color="green">118</FONT>            }<a name="line.118"></a>
<FONT color="green">119</FONT>    <a name="line.119"></a>
<FONT color="green">120</FONT>    <a name="line.120"></a>
<FONT color="green">121</FONT>            /**<a name="line.121"></a>
<FONT color="green">122</FONT>             *  Allows access to the URLs and targets retrieved<a name="line.122"></a>
<FONT color="green">123</FONT>             *<a name="line.123"></a>
<FONT color="green">124</FONT>             *@return    A table of URLs referenced by their targets as keys<a name="line.124"></a>
<FONT color="green">125</FONT>             */<a name="line.125"></a>
<FONT color="green">126</FONT>            public Hashtable getBrowserUpdates() {<a name="line.126"></a>
<FONT color="green">127</FONT>                    return (vhmlparser.getBrowserUpdates());<a name="line.127"></a>
<FONT color="green">128</FONT>            }<a name="line.128"></a>
<FONT color="green">129</FONT>    }<a name="line.129"></a>
<FONT color="green">130</FONT>    <a name="line.130"></a>




























































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